Privacy Policy

This site is a reference tool, not a data-collection platform. Every number, factor, prime-check, and calculator page here performs a mathematical computation using the values you enter or request — none of that input needs to be, or is, stored against your identity. Page views may be measured in aggregate, anonymized form (through standard analytics) to understand which pages are useful and which need improvement, without tracking you personally across sessions.

If a contact form submission includes your email address, that address is used solely to respond to your message and is not sold, shared, or added to a marketing list without your separate, explicit consent. Any future purchase (such as the Math Practice Pack) is processed through a third-party payment provider, which handles payment details directly — this site never stores your card information itself.

Cookies, where used, are limited to what’s functionally necessary (such as remembering a preference), standard analytics, and the advertising cookies described below. This policy may be updated as the site’s features change; material changes will be reflected here with an updated date.

Advertising

MathQuarry shows display ads through Google AdSense, which helps keep the calculators and reference pages free. Google and its advertising partners use cookies to serve and measure those ads, and depending on your ad settings the ads may be personalized — including remarketing — based on your visits to this site and to other websites. If you are in the EEA or the UK, Google asks for your consent before setting personalized-advertising cookies, and you can change that choice at any time.

No answer, method or worked example here is shaped by an advertiser, and advertisers never see a page before it is published. Some pages also link to products on Amazon as an affiliate, as the affiliate disclosure explains.

To see why an ad appeared or to turn off ad personalization, visit Google My Ad Center; to opt out of interest-based ads from many companies at once, use aboutads.info. How Google uses information from sites that show its ads is set out in Google’s own policy.